Sash-lock for railway-car windows



E. F. CHAFFEE.

SASH LOOK FOR RAILWAY CAR WINDOWS.

APPLICATION FILED JAN. 12, 1918.

1 349, 046 Patented Aug. 10, 1920.

/X7 I 20M M 16 INVENTOR mmvykdeff 4 ATTORNEYS UNITED STATES PATENT OFFICE.

EDWARD IE. CHAFFEE, OF SYRIAT'JUSE, NEW YORK, ASSIGNOR TO THE 0. M. EDWARDS COMPANY, 1110., OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

SASH-LOCK FOR RAILWAY-CAR. WINDOWS.

Specification of Letters Patent.

Patented Aug. 10, 1920.

Application filed January 12, 1918. Serial No. 211,554.

To all whom it may concern Be it known that I, EDWARD F. CHAFFEE, a citizen of the United States, anda resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Sash-Lock for Railway-Car Windows, of which the following is a specification.

This invention relates to sash locks or holders for windows, as railway car win dows, and has for its object a sash lock particularly for railway car windows, which holder is simple in construction, economicalin manufacture, readily assembled, highly efficient and durable in use.

The invention consists in the novelfeatures and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings, in which like characters designate corresp'onding parts in all of the views.

Figure 1 is a transverse sectional view of one form of my sash lock, the contiguous portions of the sash and window frame being also shown.

Fig. 2 is an inner face view of the detached sash lock.

Fig. 3 isan inner face view of the casing mechanism, being removed.

Fig. 4 is a detail View of the bolt.

Fig. 5 is an elevation of the operating lever.

Fig. 6 is an edge view of such lever.

This sash lock comprises generally a casing, a locking member, which for convenience is called a bolt, guided in the casing and an operating member detachably mounted in the casing and coacting with the bolt to operatethe same and having means interlocking with the casing to normally prevent removal of the operating member and to permit removal thereof when said mem her and the bolt are moved into another position, as a retracted position.

The sash look also includes means for relieving the stem of the bolt from strain when the window is stopped suddenly when being dropped by a passenger.

1 designates the casing which may be of any suitable form, size and construction, it being here shown as in the form of a box having its interior or recess 2 opening through its rear face and having a passage 3 opening laterally from the recess through a lateral or edge wall of the casing. The casing is also formed with flanges 4 at its upper and lower ends which lie on the sash and through which fastening screws are passed into the sash, and also with the laterally extending grip lever 5.

6 is the locking member which is in the form a sliding bolt movable in the passage and engaging the walls of said passage, 1t having teeth 7 at its outer end and a notch 8 between the teeth for coacting with a complemental rack of the window stop 9, as will be understood by those skilled in the art, it being understood that a sash lock is arranged at one or each lower corner of the sash. The bolt 6 is also formed with a stem 10 extending parallel to the direction of movement of said bolt and located at one side of the median line of said bolt, and as here shown it is located near the upper edge of said bolt, the stem being slidable in a suitable guide 11 in the lateral side wall of the casing 1 opposite to that in which the passage 3 is formed. A compression spring 12 encircles the stem and tends to press the bolt outwardly into its locked or operative position.

13 is the operating member which is in the form of a lever pi oted on an axis located within the recess 2 and having a handle 14 extending through a slot 15 in the side wall of the casing, the handle portion being located above the grip lever 5 in order to be engaged by the same hand enga ing the grip lever 5 in the usual manner. he lever 13 is detachably mounted on its axis and is movable into and out of its position preferably by an axial movement, and is normally held from displacement by means on said lever 13 interlocking against lateral movement with some other non-laterally movable part, as the bolt 6, or the casing 2, prefer-- ably the casing 2. The bearing for the lever 13 is usually a stud 16 provided in the recess 2 and projecting from the front wall thereof toward the open rearside of the casing, and the lever is formed with a hub or bearing 17 mountable on said hub by an axial movement. The lever 13 is formed with an angular arm 18 which is connected to the bolt 6 by a pin-and-slot connection, it being here shown as having a lateral projection 18 which acts as a pin working in a vertical slot 19 in the bolt between the upper and lower edges of the bolt and just below the stem 10.-

The means for interlocking with the easing for holding the lever from axial displacement comprises a pro ectio n or nose 20 extending laterally from the pln 18 mto a recess 21 formed in the bolt (3 and forming a lateral extension of the slot 19, the projection 20 normally extending into the passage 3 and engaging the front and rear side Walls thereof to prevent axial displacement of the lever 13.

lVhen the bolt is withdrawn as when the lever 13 is operated toward the grip lever 5, this nose or projection 20 moves out of the passage 3, and hence when the bolt is in its retracted position, the lever 13 can be moved axially off the stud l6.

Oftentimes in sash locks of this character, the stems 10 are bent or broken and hence the usefulness of the lock is impaired or destroyed, by the fact that the passenger after moving the operating lever, to withdraw the bolt, permits the sash to drop without applying any restraining force but merely holding the hand lever in such position that the bolt is held retracted, and releases the operating lever and the bolt just before the sash drops to its final position, so that the bolt is forced by its spring into operative position and engages the rack 9 and hence suddenly receives the force of the full weight of the sash. In order to prevent the bending and breaking of the stem 10, I have provided a bearing face arranged to relieve the stem 10 of such strain under such usage.

22 designates the bearing face which extends parallel to the stem 10 on the side of the bolt 7 opposite to that on which the stem 10 is located, that is, at the lower side of the bolt, and below the point of attachment of the lever 13 to the bolt, this bearing face 22 forming a continuation of the lower end wall of the passage 3. Hence during dropping of the sash when the bolt 7 is suddenly engaged with the rack 9, the bolt fulcrums on the upper end wall of the passage 3 at 23 and in the construction heretofore used, rocked and transferred the strain to the stem 10. In my construction, during the rocking of the bolt 7 on its fulcrum 23, the strain is not transferred to the stem 10 but to the bearing face 22.

My sash lock is particularly advantageous in that owing to the manner of attaching the hand lever to the casing and the bolt, it can be readily removed and replaced without manipulating screws and avoids the expense of riveting or spreading the stud 16, or of boring and threadin for a retaining or looking screw. Other advantages will be apparent to carbuilders and repairers and others skilled in the art.

\Vhat I claim is:

1. A sash lock comprising two parts, one a casing having a recess opening through its rear face, and the other a bolt supported in the casing, the casing being formed with a guide for the bolt extending transversely of said recess and an operating member placeable in and removable from the casing through said open side and being detachably mounted in the recess and having means engaging the bolt to actuate the bolt and attachable to and detachable therefrom upon movement of the lever through the open side of the recess, said member also having means for interlockin with one of said parts upon movement 0 the operating member in one direction at an angle to its movement into and out of the recess, to normally prevent detachment of said member from the casing, substantially as and for the purpose described.

2. A sash lock comprising two parts, one a casing having a recess opening through its rear face, and the other a bolt supported in the casing, the casing being formed with a guide for the bolt extending transversely of said recess and an operating member placeable in and removable from the casing through said open side and being detachably mounted in the recess and having means engaging the bolt to actuate the bolt and attachable to and detachable therefrom upon movement of the lever through the open side of the recess, said member also having means for interlocking with one of said parts upon movement of the operating member in one direction at an angle to its movement into and out of the recess to normally prevent detachment of said member from the casing, and a spring tending to move the lever in such direction, substantially as and for the purpose specified.

3. A sash lock comprising two parts, one a casing having a recess opening through its rear face, and also a passage extending laterally from the recess through an edge wall of the casing, and the other a boltmovable in the passage and being guided therein, and an operating member detachably mounted in the casing and placeable therein and removable therefrom through' the open side of the recess, said member being movable into and out of operative engagement with the bolt during movement of said member into and out of the recess through said open side, and having means for extending into the passage to interlock therewith when the bolt is in one position and thereby prevent removal of the operating member through the open side of the recess, substantially as and for the purpose set forth.

4. A sash lock comprising two parts, one a casing having recesses opening through its rear face and also a passage extending laterally from the recess through a side wall of the casing, and the other a bolt movable in the passage and being guided therein, an operating member detachably mounted in the casing and placeable therein and removable therefrom through the open side of the recess, said member being movable into and out of operative engagement with the bolt during movement of said member into and out of recess through said open side, and having means for extending into the passage to interlock therewith when the bolt is in one position and thereby prevent removal of the operating member through the open side of the recess, and a spring acting to move the bolt and the lever into the position occupied when the lever is interlocked in said passage, substantially as and for the purpose set forth.

5. A sash lock comprising two parts, one a casing having a recess opening through its rear face, a passage for a bolt extending laterally from the recess through an edge wall of the casing, and a bearing projecting toward the open side of the recess, and the other a bolt mounted in the casing and extending through said laterally extending passage, an operating lever having a bearing complemental to the former bearing and movable into and out of engagement with the same upon an axial movement of the lever into and out of the recess through the open side thereof, the lever and the bolt having means for detachably interlocking upon movement of the lever axially and serving to engage the lever and bolt whereby movement of the lever is transmitted to the bolt and vice versa, said lever also having means for detachably interlocking with one of said parts upon movement of the lever and bolt in one direction, and a spring tending to move the lever and bolt in such direction, substantially as and for the purpose described.

6. A sash lock comprising a casing having a recess opening through its rear face, a passage extending laterally from the recess and opening through a side wall of the casing, and a bearing, a bolt slidable in the passage, and an operating lever having a bearing complemental to the former bearing and movable into and out of engagement with the same by an axial movement, the lever being detachably engaged with the bolt and having a portion extending into said passage and slidably interlocking therewith to normally prevent axial displacement of the lever, substantially as and for the purpose described.

7. A sash lock comprising a casing having a recess opening through its rear face, a passage leading laterally from the recess, and a stud extending toward the open side of the recess, a spring-pressed bolt slidable in the passage and a lever having a hub slidable axially on the stud and an arm connected to the bolt by a detachable connection, said arm having a projection extending into the passage when the bolt is in its normal or operative position, the projection coacting with the walls of the passage to prevent axial displacement of the lever, substantially as and for the purpose set forth.

8. A sash lock comprising a casing formed with a recess opening through the rear face thereof, a passage leading laterally from the recess through a lateral wall of the casing, a guide in the opposite side wall of the recess, and a bearing in the recess, below said passage, a bolt slidable in the passage and having a stem extending therefrom across the recess and in the guide, a spring encircling the stem, the casing being also formed with an internal bearing face extending parallel to the stem and arranged above the bearing and engaging the lower side of the bolt, an operating lever having a bearing complemental to the former bearing and movable into and out of engagement therewith, the lever having an arm detachably engaged with the bolt between said bearing face and the stem by a pin-and-slot connection, said arm having a projection extending between the front and rear walls of said passage to normally prevent axial displacement of the lever, substantially as and for the purpose specified.

In testimony whereof, I have hereunto :signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 14 day of December, 1917.

EDWARD F. CHAFFEE. 

